JACC:治疗肝素诱导的血小板减少症 不妨试试这种药

2017-12-26 闫盈盈 环球医学

2017年发表在《J Am Coll Cardiol》的一项由瑞士、德国和英国科学家进行的研究考察了超说明书使用磺达肝癸钠或批准的抗凝药用于肝素诱导的血小板减少症(HIT)管理的有效性和安全性。

2017年发表在《J Am Coll Cardiol》的一项由瑞士、德国和英国科学家进行的研究考察了超说明书使用磺达肝癸钠或批准的抗凝药用于肝素诱导的血小板减少症(HIT)管理的有效性和安全性。

背景:威胁生命的HIT使用替代的非肝素抗凝药治疗,如阿加曲班、重组水蛭素、达那肝素,而戊糖磺达肝癸钠常超说明书使用。

目的:旨在调查不同抗凝药治疗HIT的安全性和有效性。

方法:在这项全国多中心注册研究中,纳入了确诊为HIT的住院患者。患者入组标准为,确诊为HIT,至少中等的临床HIT风险(4Ts评分≥4分),接受≥1剂的上述抗凝治疗。主要结局测量为HIT特异性并发症(静脉/动脉血栓栓塞事件、截肢、复发/持续血小板减少症、皮肤病变)和出血的发生率。

结果:195名患者中,分别有46人(23.6%)、4人(2.1%)、61人(31.3%)和84人(43.1%)接受了一线阿加曲班、重组水蛭素、达那肝素和磺达肝癸钠治疗。批准的替代抗凝药治疗的患者中,有11.7%发生了HIT特异性并发症(血栓栓塞事件、截肢、皮肤坏死)的复合终点,而磺达肝癸钠治疗的患者为0.0%。批准的替代抗凝药治疗期间,全因院内死亡率为14.4%,而磺达肝癸钠治疗期间为0.0%。替代抗凝治疗患者和磺达肝癸钠治疗的患者分别有6.3%和4.8%发生了出血并发症。临床和实验室特征的事后分析证实,至少74/195人(38.0%)真为HIT,其中的35人(47.3%)接受磺达肝癸钠。

结论:疑似急性HIT患者中,磺达肝癸钠是安全和有效的,无HIT特异性并发症发生,即使在具有较高HIT可能性的患者中也是如此。由于重组水蛭素从市场召回,达那肝素的可及性受到限制,也并未被美国批准,阿加曲班在肝功能受损的患者中禁忌,并且活化部分凝血活酶时间混杂可能干扰监测,迫切需要来自于随机对照试验的进一步证据。

原始出处:
Schindewolf M, Steindl J, Beyer-Westendorf J,et al.Use of Fondaparinux Off-Label or Approved Anticoagulants for Management of Heparin-Induced Thrombocytopenia.J Am Coll Cardiol. 2017 Nov 28;70(21):2636-2648. doi: 10.1016/j.jacc.2017.09.1099.

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    2018-02-21 hbwxf
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    2017-12-26 天地飞扬

    了解一下.谢谢分享!

    0

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